Indexing
All Issues
Submission
Author Guidelines
Reviewers
Editorial Members
Publication Fee
Vol.5 , No. 1, Publication Date: Feb. 12, 2018, Page: 40-44
| [1] | Aria Payamara, Physics Department, Simon Fraser University, British Columbia, Canada. |
| [2] | Jahangir Payamara, Physics Department, Shahed University, Tehran, Iran. |
Since 1990, color of twilight photometer in Iran, near Tehran of stratospheric turbidity to normal conditions. The twilight photometer includes four filters in the channel in IR region in which four filters are mounted in a filter wheel where each filter can be changed every few seconds. Thus, the average dust maximum layer accumulation is measured about 33km and lower layer is measured 14km. However, rather, strongly twilight was recorded on 13, 21, 23 March, and 18 May 2012, and coarse, irregular striations were observed.
Keywords
Eruption, Volcanic Dust, IR Region, Monochromatic Filters
Reference
| [01] | Castleman, A. W. 1974, Space Sci. Rev., 15, pp. 457-589. |
| [02] | Fegley, R. W. and Ellis, H. T. 1975, Geophys Res. Leff., 2, pp. 139-142. |
| [03] | Sci. News, 1982, 121, pp. 326. |
| [04] | "Common Question about climate change." 1995, United Nations Environmental Program, World Metrological Organization. |
| [05] | Payamara, J. 2012, Evaluation of effectiveness of the photometer in OH nightglow at Firuzku, Journal of Science and Technology - Volume 8, Number 13, pp. 75-80. 8 (13) pp. 75-80. |
| [06] | Science, 1963, 142, pp. 583. |
| [07] | Payamara, J. A. 2010, A RFC Photometer, Archives of Physics Research, 1 (1), pp 24-37. |
| [08] | Science, 1975, 188, pp. 477-478. |
| [09] | Payamara, J. 2010, Measurement of Atmospheric Turbidity in Firuzku by Sun photometer, Archives of Physics Research, 1 (1) 88-91. |
| [10] | Krasavtsev, B. Khlyustin, B. 1970, Determining time of rising and setting of celestial bodies and the illumination of horizon. Nautical Astronomy, Mir publishers Moscow, pp 596-589. |
| [11] | Garg, H. P, Prakash, J. 2004, Standard radiation scale and radiation measuring instruments, Solar Energy, Tata McGraw-Hill Publishing Company Limited, pp. 28-44. |
| [12] | Ristinen, R. A. Kraushaar, J. J. 1999, Sulfur dioxide in the Atmosphere, Energy and the environment, John Wiley & Sons, Inc. pp. 305-307. |
| [13] | Ristinen, R. A. Kraushaar, J. J. 1999, Particulates as pollutant, Energy and the environment, John Wiley &Sons, Inc. pp. 309-313. |
| [14] | Payamara, J. Payamara, A. 2010, A effectiveness of the sun Photometer, Journal Archives of Physics Research Volume 1, Number 1, pp. 27-34. |
